The guardian

Julie Barenson's young husband left her two unexpected gifts before he died - a puppy named Singer and the promise that he would always be watching over her. Now, four years later, twenty-nine-year-old Julie is far too young to have given up on love. She may be ready to risk caring for someone again. But who?
Should it be Richard Franklin, the sophisticated, handsome engineer who treats her like a queen? Or Mike Harris, the down-to-earth nice guy who was her husband's best friend? Choosing one of them should bring her more happiness than she's had in years. Instead, Julie is soon fighting for her life in a nightmare spawned by a chilling deception and jealousy so poisonous that it has become a murderous desire.